Description：

The ISO14xx devices are electrically isolated differential line transceivers for TIA/EIA RS-485 and RS-422 applications. These noise-immune transceivers are designed for harsh industrial environments. The bus pins of these devices can withstand high levels of IEC electrostatic discharge (ESD) and IEC electrical fast transients (EFT) events, providing system-level protection without requiring additional components on the bus. These devices are available in both basic and reinforced isolation options (see Reinforced and Basic Isolation Options).

Features：

• Compliant with TIA/EIA-485-A standard
• PROFIBUS-compliant with 5V bus-side supply
• Bus I/O protection
– ±30kV HBM
– ±16kV IEC 61000-4-2 contact discharge
– ±4kV IEC 61000-4-4 electrical fast transient
• Low-EMI 500kbps, 12Mbps, and 50Mbps data rates
• 1.71V to 5.5V logic-side supply (VCC1), 3V to 5.5V bus-side supply (VCC2)
• Failsafe receiver for open, shorted, and idle bus conditions
• 1/8 unit load: up to 256 bus nodes
• High common-mode transient immunity: 100kV/µs (typical)
• Operating temperature range: –40°C to +125°C
• Glitch-free power-up and power-down for hot-plug capability
• Wide-body SOIC-16 package
• Pin-compatible with most isolated RS-485 transceivers
• Safety-related certifications:
– 7071VPK VIOTM and 1500VPK VIORM per DIN VDE V 0884-11:2017-01 (reinforced and basic options)
– 5000VRMS isolation for 1 minute per UL 1577
– IEC 60950-1, IEC 62368-1, IEC 60601-1, and IEC 61010-1 certifications
– CQC, TUV, and CSA certifications

Applications：

• Grid infrastructure
• Photovoltaic inverters
• Factory automation and control
• Motor drives
• HVAC systems and building automation